LFState:

--------------------------------------------------------------------------
Computes the position and velocity of a satellite in the Hills frame for a
leader/follower formation given the distance from the center (d), the number
of spacecraft (nSC), and the order in the line.
Since version 7.
--------------------------------------------------------------------------
Form:
state = LFState( d, nSC, order )
--------------------------------------------------------------------------
------
Inputs
------
d (1) distance from reference point (km)
nSC (1) number of spacecraft
order (1) order in the line
-------
Outputs
-------
state (6,1) final state for the spacecraft in Hill's frame
--------------------------------------------------------------------------